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31 #ifndef CSSToLengthConversionData_h
32 #define CSSToLengthConversionData_h
34 #include "wtf/Assertions.h"
35 #include "wtf/Noncopyable.h"
42 class CSSToLengthConversionData {
44 CSSToLengthConversionData(const RenderStyle* currStyle, const RenderStyle* rootStyle, const RenderView*, float zoom, bool computingFontSize = false);
45 CSSToLengthConversionData(const RenderStyle* currStyle, const RenderStyle* rootStyle, const RenderView*, bool computingFontSize = false);
46 CSSToLengthConversionData(const RenderStyle* currStyle, const RenderStyle* rootStyle, float viewportWidth, float viewportHeight, float zoom, bool computingFontSize = false);
48 const RenderStyle& style() const { return *m_style; }
49 const RenderStyle* rootStyle() const { return m_rootStyle; }
51 bool computingFontSize() const { return m_computingFontSize; }
53 // Accessing these marks the style as having viewport units
54 double viewportWidthPercent() const;
55 double viewportHeightPercent() const;
56 double viewportMinPercent() const;
57 double viewportMaxPercent() const;
59 void setStyle(const RenderStyle* style) { m_style = style; }
60 void setRootStyle(const RenderStyle* rootStyle) { m_rootStyle = rootStyle; }
62 CSSToLengthConversionData copyWithAdjustedZoom(float newZoom) const
64 return CSSToLengthConversionData(m_style, m_rootStyle, m_viewportWidth, m_viewportHeight, newZoom, m_computingFontSize);
68 const RenderStyle* m_style;
69 const RenderStyle* m_rootStyle;
70 float m_viewportWidth;
71 float m_viewportHeight;
73 bool m_useEffectiveZoom;
74 bool m_computingFontSize;